December is by far the best month, wherein you can get cheapest flights for Bangkok to St Louis. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

BKK
21:40
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
00:18
St Louis
St Louis Lambert International Airport
Fri, 03 Apr 2026

BKK
23:30
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
14:58
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
01:20
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
21:10
St Louis
St Louis Lambert International Airport
Wed, 01 Apr 2026

BKK
19:00
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
22:58
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
21:40
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
23:15
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
19:00
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
17:59
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
15:40
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
05:52
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
08:05
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
23:55
St Louis
St Louis Lambert International Airport
Wed, 01 Apr 2026

BKK
08:05
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
22:58
St Louis
St Louis Lambert International Airport
Wed, 01 Apr 2026

BKK
21:40
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
12:55
St Louis
St Louis Lambert International Airport
Thu, 02 Apr 2026

BKK
09:45
Bangkok
Suvarnabhumi Airport
Wed , 01 Apr 2026

STL
23:59
St Louis
St Louis Lambert International Airport
Wed, 01 Apr 2026










Flying from Bangkok to St Louis has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Bangkok to St Louis is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Suvarnabhumi Airport (BKK) and St Louis Lambert International Airport (STL). You can expect a flight distance of approximately km, and most direct services cover it in around 19:51.
Let’s take a closer look at everything you need to know before booking your flight from Bangkok to St Louis.
| Flight Details | Information |
|---|---|
| Route Distance | km |
| Average Flight Time | 19:51 hrs |
| Departure Airport | Suvarnabhumi Airport (BKK) |
| Arrival Airport | St Louis Lambert International Airport (STL) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | Delta Airlines, Asiana Airlines, Cathay Pacific airways, Korean Air |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.